"Pepper's ghost" isn't the sort of phrase you hear very often at a show like SXSW. In amongst all the latest generation technology, there aren't too many folks discussing hundreds years old optical concepts.

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Usually you can get hold of their best time and race against a "ghost" or "shadow" to see if you can beat them.

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As you might guess from the band's name, The Ghost of a Saber Tooth Tiger makes songs that are ornate, fanciful, tuneful and unusual.

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Mr. MEAD: I'll probably be a ghost because I'm somebody that doesn't have a lot of time, and I can easily, you know, grab a sheet, which could even be a floral or patterned sheet, and cut some eyeholes in it.

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